Parse error: syntax error, unexpected T_STRIN

Bonjour,
Je fait un site prestashop et j'ai une erreur que j'arrive pas à résoudre :
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /homez.316/watermelj/www/install/classes/ToolsInstall.php on line 4

voilà le code :
<?php
class ToolsInstall
{
public static function checkDB ($srv, $login, $password, $name, $posted = true)
{
include_once(INSTALL_PATH.'/../classes/Validate.php');
include_once(INSTALL_PATH.'/../classes/Db.php');
include_once(INSTALL_PATH.'/../classes/MySQL.php');

if($posted)
{
// Check POST data...
$data_check = array(
!isset($_GET['server']) OR empty($_GET['server']),
!Validate::isMailName($_GET['server']),
!isset($_GET['type']) OR empty($_GET['type']),
!Validate::isMailName($_GET['type']),
!isset($_GET['name']) OR empty($_GET['name']),
!Validate::isMailName($_GET['name']),
!isset($_GET['login']) OR empty($_GET['login']),
!Validate::isMailName($_GET['login']),
!isset($_GET['password'])
);
foreach ($data_check AS $data)
if ($data)
return 8;
}

switch(MySQL::tryToConnect($srv, $login, $password, $name))
{
case 0:
if (MySQL::tryUTF8($srv, $login, $password))
return true;
return 49;
break;

case 1:
return 25;
break;

case 2:
return 24;
break;
}
}

public static function getHttpHost($http = false, $entities = false)
{
$host = (isset($_SERVER['HTTP_X_FORWARDED_HOST']) ? $_SERVER['HTTP_X_FORWARDED_HOST'] : $_SERVER['HTTP_HOST']);
if ($entities)
$host = htmlspecialchars($host, ENT_COMPAT, 'UTF-8');
if ($http)
$host = 'http://'.$host;
return $host;
}

public static function sendMail($smtpChecked, $smtpServer, $content, $subject, $type, $to, $from, $smtpLogin, $smtpPassword, $smtpPort = 25, $smtpEncryption)
{
include(INSTALL_PATH.'/../tools/swift/Swift.php');
include(INSTALL_PATH.'/../tools/swift/Swift/Connection/SMTP.php');
include(INSTALL_PATH.'/../tools/swift/Swift/Connection/NativeMail.php');

$swift = NULL;
$result = NULL;
try
{

if($smtpChecked)
{

$smtp = new Swift_Connection_SMTP($smtpServer, $smtpPort, ($smtpEncryption == "off") ? Swift_Connection_SMTP::ENC_OFF : (($smtpEncryption == "tls") ? Swift_Connection_SMTP::ENC_TLS : Swift_Connection_SMTP::ENC_SSL));
$smtp->setUsername($smtpLogin);
$smtp->setpassword($smtpPassword);
$smtp->setTimeout(5);
$swift = new Swift($smtp);
}
else
{
$swift = new Swift(new Swift_Connection_NativeMail());
}

$message = new Swift_Message($subject, $content, $type);

if ($swift->send($message, $to, $from))
{
$result = true;
}
else
{
$result = 999;
}
$swift->disconnect();
}
catch (Swift_Connection_Exception $e)
{
$result = $e->getCode();
}
catch (Swift_Message_MimeException $e)
{
$result = $e->getCode();
}
return $result;
}

public static function getNotificationMail($shopName, $shopUrl, $shopLogo, $firstname, $lastname, $password, $email)
{
$iso_code = $_GET['isoCodeLocalLanguage'];
$pathTpl = INSTALL_PATH.'/../mails/en/employee_password.html';
$pathTplLocal = INSTALL_PATH.'/../mails/'.$iso_code.'/employee_password.html';

$content = (file_exists($pathTplLocal)) ? file_get_contents($pathTplLocal) : file_get_contents($pathTpl);
$content = str_replace('{shop_name}', $shopName, $content);
$content = str_replace('{shop_url}', $shopUrl, $content);
$content = str_replace('{shop_logo}', $shopLogo, $content);
$content = str_replace('{firstname}', $firstname, $content);
$content = str_replace('{lastname}', $lastname, $content);
$content = str_replace('{passwd}', $password, $content);
$content = str_replace('{email}', $email, $content);
return $content;
}

public static function getLangString($idLang)
{
switch ($idLang)
{
case 'en' : return 'English (English)';
case 'fr' : return 'Fran?ßais (French)';
}
}

static function strtolower($str)
{
if (function_exists('mb_strtolower'))
return mb_strtolower($str, 'utf-8');
return strtolower($str);
}

static function strtoupper($str)
{
if (function_exists('mb_strtoupper'))
return mb_strtoupper($str, 'utf-8');
return strtoupper($str);
}

static function ucfirst($str)
{
return self::strtoupper(self::substr($str, 0, 1)).self::substr($str, 1);
}

static function substr($str, $start, $length = false, $encoding = 'utf-8')
{
if (function_exists('mb_substr'))
return mb_substr($str, $start, ($length === false ? self::strlen($str) : $length), $encoding);
return substr($str, $start, $length);
}

static function strlen($str)
{
if (function_exists('mb_strlen'))
return mb_strlen($str, 'utf-8');
return strlen($str);
}
}
?>

Quelqu'un aurait-il une idée ?

Merci.